Cold trap insert



FIG. 1 is a perspective view of a cold trap insert;

FIG. 2 is an alternate perspective view thereof;

FIG. 3 is another alternate perspective view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view thereof.

The broken lines depict portions of the cold trap insert that form no part of the claimed design; the broken lines form no part of the claimed design. 

CLAIM The ornamental design for a cold trap insert, as shown and described. 